Question Detail

PHY 102 Capacitors and Capacitance Objective Question

Question

What is the formula for the capacitance of a parallel plate capacitor with plate area A, separation d, and permittivity ε?
Options
A C = εA/d
Correct Answer
B C = εd/A
C C = d/(εA)
D C = A/(εd)
Correct Answer

Option A is the correct answer.

Detailed Explanation

For a parallel plate capacitor, C = εA/d, where ε is the permittivity of the dielectric between the plates.

Hint

Capacitance increases with area, decreases with separation.

Question Info